U.S. patent number 7,321,814 [Application Number 11/142,476] was granted by the patent office on 2008-01-22 for vehicle condition monitoring system.
This patent grant is currently assigned to DENSO CORPORATION. Invention is credited to Yasushi Kanda, Tatsuya Katou, Noriaki Terashima.
United States Patent |
7,321,814 |
Kanda , et al. |
January 22, 2008 |
Vehicle condition monitoring system
Abstract
A vehicle condition monitoring system for an unattended vehicle
includes an initial setting storage means, an actual state
detection means, a comparison means, and a reporting means. The
initial setting storage means memorizes a predetermined initial
setting of a vehicle, that is, a window setting, a light setting, a
door lock setting and the like. The actual state detection means
detects an actual state of the vehicle. The comparison means
compares the initial setting and the actual state of the vehicle.
The reporting means issues a report that identifies the existence
of a difference between the actual state of the vehicle and the
initial setting based on a result of a comparison. A portable
device receives the report through a wireless communication
system.
Inventors: |
Kanda; Yasushi (Kariya,
JP), Terashima; Noriaki (Okazaki, JP),
Katou; Tatsuya (Nagoya, JP) |
Assignee: |
DENSO CORPORATION (Kariya,
JP)
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Family
ID: |
35481696 |
Appl.
No.: |
11/142,476 |
Filed: |
June 2, 2005 |
Prior Publication Data
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Document
Identifier |
Publication Date |
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US 20050283286 A1 |
Dec 22, 2005 |
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Foreign Application Priority Data
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Jun 16, 2004 [JP] |
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2004-178902 |
Aug 6, 2004 [JP] |
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2004-230846 |
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Current U.S.
Class: |
701/29.6;
340/571; 701/32.3; 701/32.6; 701/33.2; 701/33.4; 701/33.6;
701/33.9; 701/34.4 |
Current CPC
Class: |
B60R
16/0232 (20130101); B60R 25/1004 (20130101); B60R
25/102 (20130101); G07C 5/008 (20130101); G07C
5/085 (20130101); B60R 2325/205 (20130101) |
Current International
Class: |
G01C
21/00 (20060101) |
Field of
Search: |
;701/29,35,70,93,119,117
;340/571,572.1,457,825.69,825.72 ;342/458,463 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
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A-H08-270285 |
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Oct 1996 |
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JP |
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2004-216290 |
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Jul 2004 |
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JP |
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Primary Examiner: Tran; Dalena
Attorney, Agent or Firm: Posz Law Group, PLC
Claims
What is claimed is:
1. A vehicle condition monitoring system for monitoring a state of
a vehicle in an unattended condition comprising: an initial setting
storage means for storing an initial setting including at least one
of a window setting, a light setting and a door lock setting of the
vehicle in the unattended condition; an actual state detection
means for detecting an actual state of the vehicle in the
unattended condition; a comparison means for comparing the initial
setting and the actual state of the vehicle; a reporting means for
issuing a report that identifies the existence of a difference
between the actual state of the vehicle and the initial setting; a
portable device for receiving the report through a wireless
communication system; and a time keeping means for keeping time
that the vehicle is left in the unattended condition, wherein the
reporting means issues the report when a predetermined amount of
time has elapsed after the vehicle has been left in the unattended
condition.
2. The vehicle condition monitoring system of claim 1 further
comprising, a vehicle user detection means for detecting the
presence of a user within a proximity of the vehicle, wherein the
reporting means issues the report when the vehicle user detection
means does not detect the user in the proximity of the vehicle.
3. The vehicle condition monitoring system of claim 1 further
comprising: an initial setting arrangement means for enabling the
user to arrange the initial setting of the vehicle, wherein the
initial setting arranged by the initial setting arrangement means
is stored in the initial setting storage means.
4. The vehicle condition monitoring system of claim 3, wherein the
initial setting arrangement means operates in one of an automotive
device on the vehicle, the portable device and a relay station in
the wireless communication system.
5. The vehicle condition monitoring system of claim 3, wherein the
initial setting arrangement means and the actual state detection
means operate in an automotive device on the vehicle.
6. The vehicle condition monitoring system of claim 3, wherein the
initial setting of the vehicle stored in the initial setting
storage means includes an activation time for operating the vehicle
condition monitoring system, and the initial setting of the vehicle
is used by the vehicle condition monitoring system during the
activation time.
7. The vehicle condition monitoring system of claim 1 further
comprising: an actual state storage means for storing the actual
state of the vehicle; and an initial setting auto-arrangement means
for automatically arranging the initial setting of the vehicle
based on the actual state stored by the actual state storage means,
wherein the initial setting of the vehicle automatically arranged
by the initial setting auto-arrangement means is stored in the
initial setting storage means.
8. The vehicle condition monitoring system of claim 1 further
comprising: a location detection means for detecting a location of
the vehicle, wherein the initial setting stored in the initial
setting storage means includes the location detected by the
location detection means, and the initial setting is used when a
current location of the vehicle and the location stored in the
initial setting are substantially the same.
9. The vehicle condition monitoring system of claim 1 further
comprising: a plurality of lock means for locking and unlocking a
door on the vehicle; a lock ID storage means for storing a lock ID
of the lock means; a lock ID transfer means for transferring the
lock ID to an automotive device; a lock ID reception means on an
automotive device for receiving the lock ID; a portable device ID
number storage means for storing an ID number of the portable
device; and a portable device selection means for selecting the
portable device from a plurality of portable devices to receive the
report, wherein the reporting means issues the report to the
portable device selected by the portable device selection means,
the report being based on the lock ID received by the lock ID
reception means.
10. The vehicle condition monitoring system of claim 9 further
comprising: a recording means for recording the lock ID being used
in the vehicle, wherein the lock ID includes one entry in a list of
a plurality of lock ID's, the portable device selection means
selects the portable device that corresponds to a latest entry in
the list of the plurality of the lock ID's in the recording means,
and the reporting means issues the report to the portable device
selected by the portable device selection means.
11. The vehicle condition monitoring system of claim 9 further
comprising: a portable device location detection means for
detecting a location of the portable device; a location retrieval
means for retrieving a location of the portable device detected by
the portable device location detection means; a location storage
means for storing the location of the portable device retrieved by
the location retrieval means; and a distance calculation means for
calculating a distance between the portable device and the vehicle,
wherein the portable device selection means selects the portable
device that is closest to the vehicle, and the reporting means
issues the report to the portable device selected by the portable
device selection means.
12. The vehicle condition monitoring system of claim 1, wherein the
vehicle is parked when the vehicle is in the unattended condition,
and the vehicle is not in the unattended condition if the vehicle
is not parked.
13. The vehicle condition monitoring system of claim 1, wherein the
vehicle has been left in the unattended condition when the vehicle
engine is stopped by turning off an ignition switch of the
vehicle.
14. The vehicle condition monitoring system of claim 1, wherein the
wireless communication system is a wireless communication network,
and the portable device includes a transceiver and is adapted for
communication with the wireless communication network.
15. The vehicle condition monitoring system of claim 1, wherein the
initial setting includes each of the window setting, the light
setting and the door lock setting.
16. A vehicle condition monitoring system for monitoring a state of
a vehicle in an unattended condition comprising: a portable device
configured for receiving a report through a wireless communication
system; and in the vehicle, an initial setting storage configured
to store an initial setting including a window setting, a light
setting and a door lock setting of the vehicle in the unattended
condition; actual state detection sensors for detecting an actual
state of the vehicle in the unattended condition; a vehicle user
detection device configured to detect the presence of a user within
a proximity of the vehicle; a location detection device configured
to detect a location of the vehicle; a processor, operably
connected to the initial setting storage, the actual state
detection sensors, the vehicle user detection device, and the
location detection device, wherein the processor is configured for
comparing the initial setting and the actual state of the vehicle;
transmitting a report that identifies the existence of a difference
between the actual state of the vehicle and the initial setting;
keeping time that the vehicle is left in the unattended condition;
and enabling the user to arrange the initial setting of the
vehicle; wherein the processor transmits the report if all of the
following occur: a predetermined amount of time has elapsed after
the vehicle has been left in the unattended condition the vehicle
user detection means does not detect the user in the proximity of
the vehicle, and the actual state of the vehicle differs from the
initial setting; wherein the initial setting arranged by the
processor is stored in tube initial setting storage, wherein the
vehicle has been left in the unattended condition when the vehicle
engine is stopped by turning off an ignition switch of the
vehicle.
17. The vehicle condition monitoring system of claim 16 further
comprising: a plurality of lock means for locking and unlocking a
door on the vehicle; a lock ID storage means for storing a lock ID
of the lock means; a lock ID transfer means for transferring the
lock ID to an automotive device; a lock ID reception means on an
automotive device for receiving the lock ID; a portable device ID
number storage means for storing an ID number of the portable
device; and a portable device selection means for selecting the
portable device from a plurality of portable devices to receive the
report, wherein the processor transmits the report to the portable
device selected by the portable device selection means, the report
being based on the lock ID received by the lock ID reception
means.
18. The vehicle condition monitoring system of claim 17 further
comprising: a portable device location detection means for
detecting a location of the portable device; a location retrieval
means for retrieving a location of the portable device detected by
the portable device location detection means; a location storage
means for storing the location of the portable device retrieved by
the location retrieval means; and a distance calculation means for
calculating a distance between the portable device and the vehicle,
wherein the portable device selection means selects the portable
device that is closest to the vehicle, and the processor transmits
the report to the portable device selected by the portable device
selection means.
Description
CROSS REFERENCE TO RELATED APPLICATION
This application is based on and claims the benefit of priority of
Japanese Patent Application No. 2004-178902 filed on Jun. 16, 2004
and Japanese Patent Application No. 2004-230846 filed on Aug. 6,
2004, the disclosure of which is incorporated herein by
reference.
FIELD OF THE INVENTION
The present invention generally relates to a vehicle condition
monitoring system.
BACKGROUND OF THE INVENTION
A conventional keyless entry system, that is, a system for remotely
controlling a door lock, uses a portable device attached to a key
to transmit a control signal to a control unit for
locking/unlocking a door on a vehicle. The portable device enables
a user of the vehicle to lock/unlock the door without inserting the
key in a key cylinder.
A modified type of the keyless entry system, that is, a so-called
smart entry system, automatically sends out a signal from the
portable device to the control unit to unlock the door on the
vehicle (refer to a Japanese Patent Document JP-A-H8-270285). In
this case, the portable device automatically responds to a
detection signal from the control unit on the vehicle, when the
portable device reaches within a certain distance from the control
unit. A door lock actuator receives a response from the portable
device to unlock the door without having an explicit instruction
from a user of the vehicle, i.e., a holder of the portable device.
In this manner, the modified type of the keyless entry system
facilitates a convenience of the user.
Further, a couple of additional features are added to this kind of
entry system. For example, the door lock being unlocked when the
user touches on a handle, the door lock locked by a press on a
button on the handle, a door mirror lamp being lit by itself, a
trunk lid opened by a press on a button on the lid, an engine
turned on by a press on an ignition switch, and a security system
released upon exchange of an ID between the key and the vehicle,
are among the features available for the user when he/she
approaches the vehicle with the portable device of the smart entry
system. In this manner, the user is free from a trouble such as
searching the key in a purse and inserting it in a key slot or
pressing a button on the portable device for sending an unlock
signal. A vehicle equipped with this kind of features is already
available.
However, the smart key system does not necessarily improve the
convenience of the user when the operation of the portable device
is too complicated or an indicator of the device is ambiguous.
Further, a confused user sometimes misuses those features to leave
the vehicle in a decreased security condition, that is, the user
leaves the vehicle in an unlocked condition. Those features also
contribute to an increase of battery consumption.
A preventive measure for warning a mis-operation or a lack of
operation is already devised in vehicles equipped with the smart
entry system. For example, an inconvenience such as a half-shut
door and/or a half-released parking brake of a traveling vehicle,
or a key or an operating headlight on an unattended vehicle is
warned by using an indicator disposed on an instrument panel or a
buzzer.
However, the user sometimes fails to respond to the warning because
of disturbance of an environment such as a noise or the like. In
addition, some user who habitually parks the vehicle in an unlocked
condition may feel it a "misplaced warning" when he/she is warned
that the vehicle is left unlocked or the like.
Further, the indicator or the buzzer is only effective to the user
in a proximity of the vehicle. For example, the vehicle parked away
from home will be left unlocked when the user does not notice the
warning at the time of departing from the vehicle parked in a
parking space.
SUMMARY OF THE INVENTION
In view of the above-described problems, it is an object of the
present invention to provide a vehicle condition monitoring system
that suitably operates according to a parking habit of a user of a
vehicle.
The initial setting of the parked vehicle in a parking space is
memorized in the vehicle condition monitoring system as a criterion
for comparison. That is, a position of a window, a switch of a
light, a state of a door lock and the like are memorized as an
initial setting. An actual state of the vehicle is also memorized.
The actual state of the vehicle is compared to the initial setting
for sending out an abnormal signal. The abnormal signal is used for
informing the user of a condition of the vehicle based on a
comparison between the actual state and the initial setting. The
abnormal signal is sent out by using a reporting means. The
abnormal signal is received by a portable device through a wireless
communication network.
The vehicle condition monitoring system includes an initial setting
storage function, an actual state detection function, a comparison
function, and a reporting function besides the portable device.
The portable device is, in this case, a cell phone or the like.
Therefore, the vehicle condition monitoring system can be applied
for a vehicle in a parking space that is well apart from a house of
the user. That is, the user of the vehicle parked far away from the
house can be warned about a lack of a lock operation by the vehicle
condition monitoring system as long as the parking space is in a
communication area of a cell phone service.
The vehicle condition monitoring system may be equipped with a time
keeping function that keeps an elapsed time since the vehicle is
parked. The vehicle condition monitoring system may send the
warning after a predetermined period of time of parking. In this
manner, an annoying or misplaced warning while unloading luggage or
picking up a leftover luggage just after parking is avoided. This
function contributes to a reliability of the vehicle condition
monitoring system by preventing a false abnormal signal while the
user is still staying around the vehicle.
The vehicle condition monitoring system may be equipped with a user
detection function that detects the user of the vehicle in a
proximity of the vehicle. The vehicle condition monitoring system
warns the user only when the user is not detected in the proximity
of the vehicle. In this manner, the user of the vehicle staying
close to the vehicle for a rest in a parking area of a highway, for
example, is not warned by the abnormal signal. This function
contributes to a reliability of the vehicle condition monitoring
system by avoiding a false abnormal signal while the user is
staying around the vehicle.
The vehicle condition monitoring system may include an initial
setting arrangement function that allows the user of the vehicle to
determine the initial setting of the vehicle stored in the initial
setting storage means. This function may make the initial setting
stored in the initial setting storage means suitable to an actual
parking manner by the user of the vehicle. Therefore, a misplaced
warning for a user who, for example, intentionally parks the
vehicle unlocked is avoided.
The vehicle condition monitoring system may include an actual state
detection function and an initial setting auto-arrangement
function. The actual state detection function stores the actual
state of the parked vehicle, and the initial setting
auto-arrangement function automatically arranges the initial
setting of the parked vehicle based on a history of the actual
states in the past. These functions may save the user a setting
operation for setting the initial setting of the parked vehicle.
These functions also contribute to a situation such as a change of
the parking space location because of a house-move or the like.
The vehicle condition monitoring system may have the initial
setting arrangement function in either of an automotive device on
the parked vehicle, the portable device or a relay station of the
wireless communication network. The initial setting arrangement
function available in one of those devices or station may allow the
user to set the initial setting of the parked vehicle remotely when
he/she is apart from the vehicle.
The vehicle condition monitoring system may have the initial
setting storage function and the actual state detection function in
the automotive device installed on the parked vehicle. These
functions may allow the user of the vehicle to set or change the
initial setting by using the portable device or the relay station
of the wireless communication network. A change or a new setting of
the initial setting may securely be stored in the vehicle condition
monitoring system on the vehicle, and the change or the new setting
may promptly be reflected on the initial setting and may promptly
be used for comparison with the actual state. These functions
installed on the vehicle may also contribute to a quick and
reliable detection of the actual state of the vehicle.
The vehicle condition monitoring system may store the initial
setting that includes information on a time slot during which the
initial setting is used for comparison. The initial setting is
stored in the initial setting storage means, and is retrieved for
comparison with the actual state of the vehicle during the time
that corresponds to the time slot specified in the initial setting.
This function allows the user to set and use plural initial
settings for different time slots. Different initial settings may
suitably accommodate different actual states according to the time
slots specified in the initial settings.
The vehicle condition monitoring system may include a location
detection means for detecting a current location of the parked
vehicle, and the location detected by the location detection
function is included in the initial setting that is stored in the
initial setting storage function. An initial setting is used for
comparison when the location in the initial setting matches the
current location of the parked vehicle. Plural initial settings may
be prepared to accommodate different locations, each of which
demands a different initial setting. For example, a parking space
in a work place and a parking space at home may be different in
terms of the initial setting of the parked vehicle.
The vehicle condition monitoring system may include a plurality of
lock functions, a lock ID storage function, a lock ID transfer
function, a lock ID receiving function, an output device storage
function and a portable device selection function. The lock
function installed on the door locks and unlocks the door of the
parked vehicle, the lock ID storage function stores a lock ID for
identifying the lock function, the lock ID sending function sends
the lock ID to the automotive device on the parked vehicle, and the
lock ID receiving function installed on the automotive device
receives the lock ID. Then, the lock ID is stored in the output
device storage function, and is used by the portable device
selection function for choosing one of the portable devices as a
destination of the abnormal signal. In this manner, plural portable
devices may be memorized using the lock IDs, and the destination of
the abnormal signal sent by the reporting function may be variably
chosen according to different situations. This contributes to an
improved convenience of the user of the parked vehicle.
The vehicle condition monitoring system may include a record
function for storing usage of the lock ID. The portable device
selection function specifies the portable device that corresponds
to a latest entry in the record function as a destination of the
abnormal signal sent out by the reporting function. In this manner,
the portable devices used for unlocking the vehicle for the last
time may be specified as the destination of the abnormal signal
sent out by the reporting function. That is, the abnormal signal
comes to the portable device that operated the lock means for the
last time. In other words, the abnormal signal is transferred to a
person who operated (unlocked) the lock function on the latest
occasion. That is, only a user of the vehicle who opened the lock
most recently receives the signal. This prevents a misplaced
abnormal signal.
The vehicle condition monitoring system may include a portable
device location detection function, a location retrieval function,
a location storage function and a distance calculation function.
The portable device location detection function detects a location
of the portable device, and the location retrieval function
retrieves a location of the portable device detected by the
portable device location detection function. The location storage
function stores a locational information of the portable device,
and the distance calculation function calculates a distance between
a current location of the vehicle and the retrieved location of the
portable device. The portable device selection function selects the
portable device that is closest to the vehicle as the destination
of the abnormal signal sent out by the reporting function. In this
manner, the user who is closest to the vehicle may receive the
abnormal signal, and thus the condition of the vehicle may quickly
be checked for taking a proper action or the like. This may
contribute to decrease of a risk of vehicle theft.
BRIEF DESCRIPTION OF THE DRAWINGS
Other objects, features and advantages of the present invention
will become more apparent from the following detailed description
made with reference to the accompanying drawings, in which:
FIG. 1 is a schematic diagram that illustrates an embodiment of a
vehicle condition monitoring system in the present invention;
FIG. 2 is a block diagram of automotive devices of the vehicle
condition monitoring system; and
FIG. 3 is a block diagram of an information server;
FIG. 4 is a block diagram of an initial setting stored in a
memory;
FIG. 5 is a modified example of the initial settings stored in the
memory;
FIG. 6A is an image on a display panel for an initial setting
arrangement;
FIG. 6B is a pop up window appeared on the image for the initial
setting arrangement;
FIG. 7 is a block diagram of an initial setting compared to an
actual state;
FIG. 8 is a schematic diagram that illustrates another embodiment
of the vehicle condition monitoring system;
FIG. 9 is a block diagram of an initial setting compared to an
actual state in a fourth embodiment; and
FIG. 10 is a block diagram of an initial setting compared to an
actual state in a fifth embodiment.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
A vehicle condition monitoring system is explained with reference
to drawings.
The object of the present invention, that is, reporting a parking
condition of a vehicle being monitored in a suitable manner for a
user of the vehicle, is achieved by reporting a condition based on
a comparison between an arbitrarily-established initial setting and
an actual state of the vehicle.
First Embodiment
The vehicle condition monitoring system shown in FIG. 1 includes a
vehicle 1 and a portable device 3. The portable device 3 in this
embodiment is represented as a cell phone of a well-known type. The
portable device 3 may also be a personal computer, a personal
digital assistant, a transmitter (i.e., a key) of a wireless door
lock having a reception function or any other device that is
equipped with a communication function.
The automotive device 10 installed on the vehicle 1 is explained
with reference to FIG. 2. The automotive device 10 includes an ECU
(Electric Control Unit) 11 and a data communication device 16. The
ECU 11 includes various components (not shown in the figure) such
as a CPU, a ROM, a RAM of well-known types, an I/O circuit, a bus
line, a signal circuit for switch/sensor 17, an operation panel 18,
an indicator LED 13, a buzzer 14 and a signal output circuit of a
motor 15. The CPU is controlled by a program and data stored in the
ROM and the RAM. The ROM has a program storage area and a data
storage area. The program storage area stores a control program,
and the data storage area stores data for operating the control
program. The control program uses a work memory on the RAM as a
work area.
The ECU 11 includes a memory 12, and the memory 12 stores
information necessary for operating the ECU 11. The content of the
memory 12 is retained even when an ignition switch (not shown in
the figure) of the vehicle 1 is turned off.
The operation panel 18 is, for example, corresponds to a touch
panel or a mechanical switch integrated with a display device that
is made from a color liquid crystal display. The touch panel has
infrared sensors on the display panel that uses fine meshes of
infrared beams to detect a finger or a touch pen on the panel. Two
dimensional coordinates (x, y) are output when the finger or the
touch pen intercepts the infrared beam. The touch panel may be
substituted by a pointing device such as a mouse, a cursor or the
like. The operation panel 18 accepts various kinds of instruction.
A microphone or a voice recognition device of a well-known type may
be used for accepting a voice input.
The switch/sensor 17 includes the following components that are not
shown in the figure. A door condition detection switch for
detecting a door condition turns on when the door is open, and
turns off when the door is closed. A door lock condition switch for
determining a door lock condition turns on when the door is locked,
and turns off when the door is unlocked. A window condition
detection sensor for detecting a window condition translates a
condition of the window into a voltage. For example, a full open
window condition is translated to an output of a voltage of 5V, and
a width of an opening of the window correlates to the voltage. When
the window is closed, the voltage is 0. A lamp condition detection
switch is used for detecting a condition of an external lamp on the
vehicle. ON/OFF conditions of a headlight, a tail lamp and the like
are detected by the lamp condition detection switch. A room lamp
condition detection switch is used for detecting a condition of an
internal lamp on the vehicle. ON/OFF conditions of a room lamp and
the like are detected by the room lamp condition detection
switch.
A setting method of the initial setting is explained with reference
to FIGS. 6A and 6B. FIGS. 6A and 6B are examples of images shown on
a display in the operation panel 18. An instance of the initial
setting is shown on the display as a side view of the vehicle 1 in
FIG. 6A under an instruction from the touch switch or the like. The
side view on the display with the touch switch allows the user to
set the initial setting of the head lamp 31 when the head lamp
portion 31 of the side view on the display is touched. Likewise,
the window portion 32 allows the user to set the initial setting of
the window 32 (open/closed), a door knob portion 33 for the initial
setting of the door lock, the door portion 34 for the initial
setting of the door (open/closed), and a center portion of a
ceiling 35 for the initial setting of the internal lamp. Each of
the windows, doors and door locks may be set individually. A trunk
lid and/or a rear gate may be included in the initial setting
settings.
A touch on the door knob portion 33 in FIG. 6A displays a pop up
window for the initial setting shown in FIG. 6B. A press on a
"Locked" button or an "Unlocked" button sets the initial setting of
the door lock accordingly in the memory 12. A confirmation step may
be taken by using another window that has a "Confirm" button after
lock/unlock selection. An "Exclude" button may be displayed with
the "Locked" and "Unlocked" button to exclude the initial setting
of the door lock from comparison objects with the actual state.
An alternative way of setting the initial setting may be taken. For
example, the initial setting may be set "as a whole" or "as is"
instead of setting individually. That is, when the vehicle is
parked in a condition that is desirable to be used as the initial
setting, the desirable condition is set as the initial setting as
it is. The user may use the touch switch on the operation panel 18
to display the pop up window for initial setting. The initial
setting may be set by selecting a "collective setting" option to
store a current condition of the vehicle in the memory 12 by using
the switch/sensor 17 for detection of the current condition of
windows, door locks and the like.
An initial setting storage area in the memory 12 is shown in FIG.
4. The collective setting of the initial setting shown on the left
is stored in the memory 12 by overwriting the initial setting on
the right in the figure. In this case, the initial setting of the
door lock "Unlocked" is overwritten to "Locked" and the initial
setting of the door lock "Locked" is stored in the initial setting
storage area.
A reporting process of the vehicle 1 is explained. This reporting
process is iteratively executed by the control program. The actual
state, that is, a current condition of each of the sensors and
switches in the switch/sensor 17 is stored in the RAM or the like
of the ECU 11 temporarily. In FIG. 7, the door condition detection
switch is "Closed," the door lock condition detection switch is
"Unlocked," the window condition detection sensor is "Closed," and
the lamp condition detection switch is "Head lamp OFF."
The detected condition of each of the switch/sensor 17 is compared
with the initial setting. The initial setting of each component is,
as shown in FIG. 7, that the door condition detection switch is
"Closed," the door lock condition detection switch is "Locked," the
window condition detection sensor is "Closed," and the lamp
condition detection switch is "Head lamp OFF." In this case, the
detected condition of the door lock "Unlocked" is different from
the initial setting "Locked."
A reporting destination such as a telephone number of the portable
device 3 (a cellular phone) or an E-mail address is stored in a
predetermined area of the memory 12. The reporting destination is
contacted when the initial setting of the vehicle 1 and the actual
state are detected as different. A title and a message for the
E-mail may be stored in the memory 12. The message of the E-mail
may include a predetermined phrase such as, for example "Door is
open," stored in the memory 12 to report a difference of the actual
state from the initial setting to the user.
The detected condition of the door lock by the switch/sensor 17 is
detected as different from the initial setting in this case.
Therefore, the ECU 11 issues a warning, that is, the detected
condition is different from the initial setting, to the
predetermined reporting destination (i.e., the portable device 3)
stored in the memory 12 by sending communication instruction to the
data communication device 16 when the detected condition persists
for a predetermined period of time (e.g., 30 minutes).
The period of time before sending the warning may be determined by
the user of the vehicle 1. That is, the amount of time (i.e., a
numerical value) may be input from the pop up window for the
initial setting by the user by using the switch on the operation
panel 18. The reporting destination may also be determined by the
user. The reporting destination is input in the same manner as the
predetermined time for the warning.
The reporting destination may be re-contacted repeatedly after a
predetermined period of time for a predetermined number of times
(e.g., 1 minute, 5 times) when the destination can not be reached
because of a busy line or the like.
A user detection function either in the CPU or the peripheral
circuit may be used to detect whereabouts of the user of the
vehicle. The user detection function may send a warning to the user
when the user is not detected in a proximity of the vehicle 1.
The user of the vehicle 1 is detected by using a response signal
from the portable device 3 sent in response to a detection signal
automatically sent from the data communication device 16. The user
is determined not to be in the proximity of the vehicle 1 when the
response signal is not received by the data communication device
16. A predetermined period of time, e.g., 30 minutes, is a
threshold to determine that the user is absent from the vehicle.
Then, the initial setting is compared with the actual state. The
threshold time may be specified in the same manner as described
above.
The initial setting may also be automatically set. That is, a
condition of the vehicle after a predetermined period of time
(e.g., 15 minutes) of vehicle engine stoppage by turning off the
ignition switch may automatically be stored as the initial setting.
The initial setting is detected by using the switch/sensor 17 in
this case as in the other cases. Plural sets of initial settings
may be stored in the memory 12 for determining the initial setting
under majority rule.
The initial setting may be differentiated by incorporating time
information derived from the CPU or the peripheral circuit (not
shown in the figure) in the ECU 11 and/or location information
derived from a Global Positioning System through a GPS receiver 19.
That is used to accommodate different times (day/night etc.) and
locations (office/home etc.) in the entries of the initial setting.
The user of the vehicle may customize and store the plural initial
settings in the memory 12 by, for example, specifying a location on
a map displayed on the operation panel 18.
A part of the memory 12 is reserved as the initial setting storage
area as shown in FIG. 5 for storing plural patterns of the initial
setting. That is, a pattern A 12a is the initial setting for
daytime, e.g., from 6 a.m. to 7 p.m. parking at home, a pattern B
12b is the initial setting for night, e.g., from 7 p.m. to 6 a.m.
parking at home, and a pattern C 12c is the initial setting for
parking at office regardless of the time slot. These patterns are
stored in the memory 12 in the above-described manner as, for
example, a setting 1 to setting 10. Each of the settings may have a
specific name such as "home," "office," or the like instead of only
having a number.
The memory 12 includes an area for storing a currently-used pattern
of the initial setting. For example, the vehicle 1 uses the pattern
A 12a when it is parked at home at 9 a.m. and the pattern A 12a is
automatically switched to the pattern B 12b after 7 p.m. Further,
the pattern A 12a is automatically switched to the patter C 12c
upon receiving a current location from the GPS receiver 19 when the
vehicle is moved from home to the office.
The current location may be derived from the GPS receiver 19 or the
like in the ECU 11, or may be derived from a well-known type
vehicle navigation system for showing a map and guiding a
recommended route for the user of the vehicle. The vehicle
condition monitoring system of the present invention may be
integrated in a vehicle navigation system to decrease cost of
production, because the navigation system in recent years
accommodates various kinds of highly sophisticated functions
including communication function with external network such as a
cellular phone network or the like.
Second Embodiment
The initial setting of the vehicle may be set by using the portable
device such as the cellular phone or the like. The portable device
receives the warning when the actual state is different from the
initial setting. The portable device and vehicle of this second
embodiment may be represented by the portable device 3 and the
vehicle 1 of the first embodiment illustrated in FIG. 1.
The portable device 3 may be used to set the initial setting of the
vehicle 1 in this embodiment. An input window for the initial
setting may be displayed on a display of the portable device by an
input from a dial key or a function key of the portable device for
allowing the user of the vehicle to specify the initial setting of
the door (open/closed), the time slot for activating the initial
setting, the place for activating the initial setting and the like.
The initial setting may be sent to the automotive device on the
vehicle 1 when, for example, a "Complete" button is pressed. The
automotive device stores the initial setting received from the
portable device 3 in a predetermined area of the memory 12. The
initial setting may be set in the above-described manner with
reference to FIG. 6.
The portable device 3 may store at least one initial setting of the
vehicle 1 in a memory on the portable device 3, and the user of the
vehicle 1 may select one of the initial setting stored in the
portable device 3 to be sent and used on the vehicle 1. The vehicle
1 may store the initial setting in the initial setting storage area
in the memory 12 for use in the vehicle condition monitoring
system.
The vehicle 1 in this embodiment is assumed to have the same
component function as the vehicle 1 in the first embodiment.
Therefore, a detailed explanation of the vehicle 1 is omitted.
Further, the operation panel 18 on the vehicle 1 may be omitted
when all the setting operations and the like is sent from the
portable device 3.
Third Embodiment
The portable device and the vehicle can be relayed by using a relay
station. The vehicle 1, a relay station 2 and the portable device 3
in FIG. 1 collectively represent a scheme of this embodiment. The
vehicle 1, the relay station 2 and the portable device 3 are
communicatively connected through the wireless communication
network. The portable device 3 in this embodiment is a well-known
type cellular phone. The portable device 3 may also be a personal
digital assistant (PDA), a transmitter of a wireless door lock
having a reception function, or any other device that is equipped
with a communication function.
First, the relay station 2 is explained. The relay station 2
includes an information server 25 and a transceiver 22 that
exchanges data with the data communication device 16 on the vehicle
1.
An example of the information server 25 is shown in FIG. 3. The
information server 25 includes a CPU 51, a ROM 52, a RAM 53 and an
input/output interface (I/O) 54, collectively connected to the bus
line 55, in a body 50. The information server 25 further includes
the following parts, that is, input devices such as a keyboard 56,
a mouse 57 and the like, recording media such as a CD-ROM drive 58,
a Floppy (Registered trademark) disk drive (FDD) 59 or the like, a
hard disk drive (HDD) 60, a monitor 62 with a monitor controller
61, a printer 63, and a network controller 64 for controlling a
communication with the transceiver 22 and the like to server as a
computer system.
The HDD 60 stores an operating system program (OS) 60a and an
information server program 60b. The information server program 60b
uses a work memory reserved on the RAM 53 by the OS 60a to
implement a function of the information server 25. For example, the
information server program 60b may be stored on a medium in the
CD-ROM drive 58 or the like as a computer readable form to be
installed on a predetermined area on the HDD 60. The RAM 53 may
also serve as a work memory for the OS 60a.
The HDD 60 further includes a database 23 for storing a map data
and a map related data (e.g., a weather information). The map
related data may be updated regularly by an input data from the
input devices such as the keyboard 56, the mouse 57 or the like, or
may be updated by a retrieved data from the recording media such as
the CD-ROM drive 58, the FDD 59 or the like. The map related data
may not necessarily be limited to a weather information but include
any information that can be used in the vehicle condition
monitoring system of the present invention.
In this manner, the information server 25 serves as an information
server when the information server program 60b is executed by the
CPU 51 in the body 50 after an initialization process. Then, the
vehicle 1 receives necessary information processed by the
information server program 60b or a search result of the database
23 received through the transceiver 22 when vehicle 1 requests
information or a search to the information server 25.
The initial setting of the vehicle 1 may be set by taking reference
information available from the relay station 2 into account at the
vehicle 1 or using the portable device 3. For example, a weather
forecast is retrieved from the relay station 2 when the vehicle is
parked outside for a night. The weather forecast is retrieved to
the vehicle 1 or to the portable device 3 from the relay station 2
based on a location of the vehicle 1. The user of the vehicle 1 may
prevent a rain from entering inside the vehicle 1 by changing the
initial setting of the window to "Closed" from a normal setting of
"Open" for ventilation, when the weather forecast retrieved to the
vehicle 1 or to the portable device 3 foresees a rain of more than
1 mm within a couple of hours.
The relay station 2 may be used to relay a communication between
the vehicle 1 and the portable device 3 when a direct communication
between the vehicle 1 and the portable device 3 is not possible.
That is, the database 23 stores addresses (e.g., a telephone
number) of the vehicle 1 (i.e., the data communication device 16)
and the portable device 3. For example, the vehicle 1 communicates
with the portable device 3 by sending a request for address search
to the database 23 through the relay station 2, and a request for
calling the portable device 3 based on a retrieved address. The
portable device 3 communicates with the vehicle 1 in the same
manner.
The initial setting being set in the vehicle 1 or sent from the
portable device 3 may be stored in the database 23 in the relay
station 2. For example, the portable device 3 may change a
necessary item in the initial setting retrieved from the database
23 and send the initial setting back to the relay station 2 and
further to the vehicle 1 (the automotive device) to be stored in a
predetermined area of the memory 12. In this manner, the memory 12
on the vehicle 1 may be reduced in size and the reduced size of the
memory 12 may contribute to cost reduction.
The information server 25 may set the initial setting. In this
case, the information server 25 provides an initial setting
arrangement function, an initial setting auto-arrangement function
and an initial setting storage function. The initial setting being
set by the information server 25 is stored in the database 23 with
a subject vehicle of the initial setting, and the initial setting
is sent to the automotive device on the subject vehicle.
The vehicle 1 may register the initial setting in the relay station
2, and the relay station may regularly check the actual state of
the vehicle 1. The relay station 2 may issue a warning to the
portable device 3 when the actual state is different from the
initial setting.
Fourth Embodiment
The vehicle condition monitoring system may use a plurality of
portable devices. In this embodiment, the vehicle condition
monitoring system is explained with reference to FIGS. 2, 8 and 9.
As shown in FIG. 8, the vehicle 1, the relay station 2, the
portable device 3 and the portable device 4 are connected to the
wireless communication network. The portable devices 3, 4 in this
embodiment are basically the cellular phones. However, the PDA, the
transmitter of the wireless door lock, or any other communication
device may substitute the cellular phones.
The memory 12 includes a latest user storage area 121, a reporting
destination storage area 122 beside an initial setting storage area
123, as shown in FIG. 9. The latest user storage area 121 stores a
key number of the user who used the vehicle for the last time.
When the user uses the key to unlock the door, the ID information
of the key, i.e., the key number, is transmitted to the automotive
device 10 in FIG. 2. The data communication device 16 in the
automotive device 10 stores the key number in the latest user
storage area 121. The key number is 1 in the example shown in FIG.
9. That is, the latest user has the key of the key number 1.
The key number may be stored in the latest user storage area 121 in
the following manner. That is, (1) the data communication device 16
may receive the key number when the door is locked, (2) the data
communication device 16 may receive the key number when the engine
is started, (3) the data communication device 16 may receive the
key number when the engine is stopped, (4) the data communication
device 16 may receive the key number when the trunk lid is opened
after stopping the engine, (5) the data communication device 16 may
receive the key number when all of the windows are closed after
stopping the engine, or (6) the data communication device 16 may
receive the key number when a predetermined action is taken besides
the above-described actions. When plural key numbers are received,
the smallest number may be stored in the storage area 121.
The reporting destination storage area 122 stores the reporting
destination such as a telephone number, an E-mail address or the
like corresponding to each key number. The example shown in FIG. 9
illustrates that the key number 1 corresponds to the portable
device 3 having an address AAM and the key number 2 corresponds to
the portable device 4 having an address BBBB. In addition, plural
keys may correspond to a single reporting destination.
The actual state of each switch/sensor detected by the
switch/sensor 17 and the initial setting in the initial setting
storage area 123 is different in FIG. 9. That is, the actual state
of the door lock is "Unlocked" against the stored initial setting
"Locked." Therefore, the ECU 11 determines that the actual state of
the vehicle 1 is a negligent "Unlocked" condition, and sends a
warning by retrieving a content of the latest user storage area 121
(key number 1) and informing the reporting destination
corresponding to the key number 1 (the portable device 3 having the
address AAMA) that the vehicle 1 is in different condition from the
initial setting.
The warning may only be sent to the latest user storage area 121,
or may be sent to the other entry in the reporting destination
storage area 122 subsequently after sending the warning to the
latest user.
The key may be a wireless key of a well-known type, or may be a key
to be inserted to a key cylinder, a smart key for a keyless entry
system, or the like. The key may be integrally formed with the
portable devices 3, 4. In this embodiment, the number of the keys
may be one.
Like numbers in this embodiment indicate like components,
operations or controls in the previous embodiments.
Fifth Embodiment
Another embodiment that uses plural keys and plural portable
devices is explained with reference to FIGS. 8 and 10.
FIG. 10 shows the memory 12 including the initial setting storing
area 123, a current vehicle location storage area 124, a user
location storage area 125 and the reporting destination storage
area 122. The vehicle 1 receives a signal from a Global Positioning
System satellite to determine a current vehicle location by using
the GPS receiver 19 shown in FIG. 2. The current vehicle location
may also be detected by using an earth magnetism sensor, a
gyroscope, a distance sensor, a steering rotation sensor and/or a
tire rotation sensor. The automotive device 10 may be connected to
the navigation system (not shown in the figure) to obtain the
current vehicle location.
The reporting destination storage area 122 stores reporting
destinations (telephone numbers, E-mail addresses or the like) that
correspond to the key numbers. The example shown in FIG. 9
illustrates that the key number 1 corresponds to the portable
device 3 having an address AAAA, and the key number 2 corresponds
to the portable device 4 having an address BBBB. In addition,
plural keys may correspond to a single reporting destination.
The portable devices 3, 4 include a location detector to detect a
current location of the devices 3, 4, and regularly communicate
with the automotive device 10 to send the current location to the
device 10. The automotive device 10 stores received location
information in the user location storage area 125. The relay
station 2 may also query the portable devices 3, 4 for current
locations to obtain and send the current user locations to the
vehicle.
The actual state of the each switch/sensor detected by the
switch/sensor 17 is compared with the initial setting stored in the
initial setting storage area 123 in FIG. 10. In this case, the
actual state of the door lock "Unlocked" is different from the
initial setting "Locked." Therefore, the ECU 11 determines that the
actual state of the vehicle 1 is the negligent "Unlocked"
condition, and calculates distances between the current location of
the vehicle and each of the current location of the portable
devices 3 and 4 by using the current vehicle location in the
current vehicle location storage area 124 and the current location
of the users having the portable devices 3, 4 in the user location
storage area.
The user closest to the vehicle 1 is selected based on the
comparison of the distance calculated in the above-described
manner. The warning that the vehicle 1 is different from the
initial setting is sent to the address of the portable device 4
(key number 2: address BBBB) stored in the reporting destination
storage area 122 as shown in the example shown in FIG. 10.
Only the user closest to the vehicle may be notified by the
abnormal signal, or the other users may be included in the
reporting destination in order of the calculated distance from the
vehicle.
Further, the key (not shown in the figure) may include the location
detector and the communication system to regularly report the
current location of the key to the automotive device 10. The key
may also be integrally formed with the portable devices 3, 4. The
only one key may be sufficient to operate the vehicle condition
monitoring system.
Like numbers in this embodiment indicate like components,
operations or controls in the previous embodiments.
Although the present invention has been fully described in
connection with the preferred embodiments thereof with reference to
the accompanying drawings, it is to be noted that various changes
and modifications will become apparent to those skilled in the
art.
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